Looking to master mental calculations and encourage estimating? Then don't delay and download this Year 6 Mental Calculations and Estimation Modelling PowerPoint.

This eye-catching slideshow leads you and your class through several varied fluency, reasoning and problem-solving questions, all of which can be found in our corresponding worksheets for this lesson.

Designed to be used as a whole-class teaching tool, this resource can be worked through at your own pace. Immediate feedback can be given as each slide comes with its own answer page.